A circular, single or multipiece item, metallic or nonmetallic in composition, designed to be fitted in a circumferential groove in a piston and to spring outward against the cylinder wall to function as a seal or wiper. It is supplied in various cross-sectional shapes and is cut through at one point to allow for installation in the piston ring groove. It may include an expander. Excludes packing, preformed; retainer, oil seal; retainer, packing; ring, retaining; ring wiper; and seal ring, metal.
Classification: Parts for steam turbines
NSN 5965-01-590-3311
NSN 6320-01-302-5157
NSN 6645-01-092-4733
NSN 6150-00-879-5853
NSN 5925-00-787-7206
NSN 6130-01-138-2470
NSN 7035-00-916-9380
NSN 5935-00-648-3298
NSN 5999-00-605-1433
NSN 6135-01-086-0809
NSN 5945-00-737-1449
NSN 6130-00-156-7751